Rabbi Shmuel bar Nachmani said: For all seven days of the bush [the burning bush], God tried to persuade Moses to go on his mission in Egypt. As it says, “NEITHER yesterday, NOR the day before yesterday, NOR since you have spoken to Your servant” (Exodus 4:10). Totalling six [days]. On the seventh day he said to God, “Send, pray Thee, by the hand of whom You will send” (Exodus 4:13). God said to him: Moses, you say to me, “Send, pray thee, by the hand of whom You will send”. By your life, I will tie this in your skirts.

When did he repay him? Rabbi Berekhia gave an answer in the name of Rabbi Levi and Rabbi Chelbo: Rabbi Levi said: For all seven days of Adar, he [Moses] asked in prayer and supplication to enter the land of Israel. On the seventh day God said to him, “For you shall not cross this Jordan” (Deuteronomy 3:27). Rabbi Chelbo said: All seven days of the consecration, Moses served as the high priest and thought, on the seventh day ‘it’s mine’. God said to him, ‘It is not yours, but rather Aaron your brother’s.’ “It came to pass on the eighth day he called” (Leviticus 9:1).